Add GitHub Action for staging release workflow

.github/workflows/stage-release.yml

@@ -0,0 +1,62 @@
+name: 'Stage Release Action'
+description: 'Reusable GitHub Action to create stage release PRs'
+
+on:
+  workflow_call:
+    inputs:
+      version_type:
+        description: "Version type (minor or patch)"
+        required: true
+        type: string
+        default: "patch"
+    secrets:
+      GH_TOKEN:
+        description: "GitHub token"
+        required: true
+
+jobs:
+  create-release:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+
+      - name: Bump version
+        run: |
+          CURRENT_VERSION=$(node -p "require('./package.json').version")
+          CLEAN_VERSION=$(echo "$CURRENT_VERSION" | sed -E 's/-hotfix.*//')
+          NEW_VERSION=$(npx semver "$CLEAN_VERSION" -i ${{ inputs.version_type }})
+          echo "New version: $NEW_VERSION"
+          npm version "$NEW_VERSION" --no-git-tag-version
+          echo "VERSION=v$NEW_VERSION" >> $GITHUB_ENV
+          echo "RELEASE_BRANCH=release/v$NEW_VERSION" >> $GITHUB_ENV
+
+      - name: Setup git config
+        run: |
+          git config user.name "${{ github.actor }}"
+          git config user.email "${{ github.actor_id }}+${{ github.actor }}@users.noreply.github.com"
+
+      - name: Create release branch
+        run: |
+          git checkout -b ${{ env.RELEASE_BRANCH }}
+          git add package.json package-lock.json
+          git commit -m "🔖 Bump version to \`${{ env.VERSION }}\`"
+          git push --set-upstream origin ${{ env.RELEASE_BRANCH }}
+
+      - name: Create Pull Request
+        env:
+          GH_TOKEN: ${{ secrets.GH_TOKEN }}
+        run: |
+          gh pr create --base env/stage \
+          --head ${{ env.RELEASE_BRANCH }} \
+          --title "📦 Prepare release \`${{ env.VERSION }}\` and deploy to stage" \
+          --body "This is an automated release PR for version \`${{ env.VERSION }}\`" \
+          --label "deployment"